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Head to head · Proactive personal assistants · October 2026 research run

Boski vs Gemini Spark

Boski scores 26.2 (F) on agent readiness against Gemini Spark's 24.5 (F), and leads in 4 of 7 scored categories. Gemini Spark leads on security & auth. Both do proactive personal assistants.

Best AI personal assistants that act for one person · All 834 assistants comparisons

BoskiBoski, Inc. · Platform F26.2/100#981 of 1010 Gemini SparkGoogle LLC · Platform F24.5/100#982 of 1010

Which one, for what

Boski F

Best for People who want an agent working on personal goals between conversations, and who want ChatGPT or Codex to read their saved preferences.

Ahead on

  • Reliability, 25 against 14
  • Maintenance & community, 23 against 17
  • Transparency & trust, 63 against 49

Watch for

No free plan or trial found.

Gemini Spark F

Best for A person who already keeps mail, calendar and files in a personal Google Account and accepts Keep Activity being on.

Ahead on

  • Security & auth, 60 against 45

Watch for

No public API, SDK or MCP server for an outside agent was found. Spark is reached in the Gemini mobile app, the Mac app and gemini.google.com

Score by category

CategoryWeight this runBoskiGemini SparkEdge
Reliability16%202514Boski +11
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.21517Gemini Spark +2
Agent ergonomics13%16.2139Boski +4
Security & auth14%17.54560Gemini Spark +15
Payments & pricing10%12.51010even
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.82317Boski +6
Transparency & trust7%8.86349Boski +14
Negative events≤1500
TotalF 26.2/100F 24.5/100

Facts side by side

FactBoskiGemini Spark
KindPlatformPlatform
VendorBoski, Inc.Google LLC
Hosted endpointno (local only)no (local only)
Transports
AuthOAuth or keyOAuth
PricingPaidPaid
x402nono
LicenceClosed service under Boski's Terms of Service (Boski, Inc., a Delaware corporation, effective 20 August 2026).Proprietary hosted service under the Google Terms of Service
Read-only variant documentedyesno
llms.txtyesno
Last releasenone2026-05-19
Terms last updated2026-07-30
Privacy policy last updated2026-09-24
Customer content may train modelsyes, with an opt-out
Terms restrict automated accessyes
Terms restrict benchmarkingnot found in the text
Terms or service can change without noticenot found in the text
Arbitration or class-action waivernot found in the text

Verdicts

Boski

Boski is a hosted personal agent that works on its owner's goals over messaging channels for $5 a week, and its plugin lets ChatGPT and Codex read saved preferences under a read-only OAuth scope. No free option, status page or security contact was found, and the plugin's tool definitions weren't readable.

Gemini Spark

Google's help pages state what Spark confirms before doing, how to delete its remote browser and code data, and the risks of prompt injection. Spark has no public API, Google calls it experimental, and it runs only with Keep Activity on, the setting under which chats are used for model training and human review.

Before you call either

Boski

  1. Use the Boski plugin only to read the owner's saved preferences and constraints. It can't save changes.
  2. Ask the owner to finish Boski's onboarding interview if the plugin says it's incomplete, then retry.

Gemini Spark

  1. Do not plan an integration against Spark. No public API or MCP server was found, and a person must hold a Google AI Pro or Ultra subscription
  2. Expect a confirmation request before sends, edits, purchases and web form submissions, and note that bulk changes to private Google Tasks run without one
  3. Delete remote browser data and remote code execution data in Gemini Spark Settings after a sensitive session. Deleting a task thread or Gemini Apps activity does not remove them
  4. Keep within 15 running tasks and 50 active schedules. A schedule does not run when 15 tasks are running or the usage limit is reached
  5. Treat every safety statement here as Google's own description. None was tested, and no message was sent to the service

Questions

Which is better for AI agents, Boski or Gemini Spark?

Boski scores 26.2 (F) on agent readiness against Gemini Spark's 24.5 (F), and leads in 4 of 7 scored categories. Gemini Spark leads on security & auth.

Other comparisons with Boski or Gemini Spark

Disclosure

Boski competes with LocalGhost, which Anchor Terminal's founder builds. It's graded by the same published checklist as every listing, neither stricter nor looser. Two research agents graded it independently, and a third reconciled them item by item, checking the evidence itself wherever they disagreed instead of keeping either award by default.

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